CA2463281A1 - Non-return valve for use in a molding system - Google Patents

Non-return valve for use in a molding system Download PDF

Info

Publication number
CA2463281A1
CA2463281A1 CA002463281A CA2463281A CA2463281A1 CA 2463281 A1 CA2463281 A1 CA 2463281A1 CA 002463281 A CA002463281 A CA 002463281A CA 2463281 A CA2463281 A CA 2463281A CA 2463281 A1 CA2463281 A1 CA 2463281A1
Authority
CA
Canada
Prior art keywords
present
return valve
spigot
complementary
seal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002463281A
Other languages
French (fr)
Other versions
CA2463281C (en
Inventor
Jan M. Manda
Sean Weir
Pierre Jean Pinet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Husky Injection Molding Systems Ltd
Original Assignee
Husky Injection Molding Systems Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Husky Injection Molding Systems Ltd filed Critical Husky Injection Molding Systems Ltd
Priority to CA 2463281 priority Critical patent/CA2463281C/en
Priority to US11/062,020 priority patent/US7364131B2/en
Priority to EP20050714459 priority patent/EP1747392B1/en
Priority to JP2007506622A priority patent/JP4547001B2/en
Priority to AU2005230648A priority patent/AU2005230648B2/en
Priority to DE200560021966 priority patent/DE602005021966D1/en
Priority to RU2006138479A priority patent/RU2338109C2/en
Priority to CNB2005800104777A priority patent/CN100526694C/en
Priority to BRPI0509013-0A priority patent/BRPI0509013A/en
Priority to PCT/CA2005/000212 priority patent/WO2005098290A1/en
Priority to AT05714459T priority patent/ATE472071T1/en
Priority to MXPA06010191A priority patent/MXPA06010191A/en
Priority to TW94106084A priority patent/TWI277468B/en
Priority to TW95143645A priority patent/TWI308624B/en
Publication of CA2463281A1 publication Critical patent/CA2463281A1/en
Priority to IL177659A priority patent/IL177659A0/en
Application granted granted Critical
Publication of CA2463281C publication Critical patent/CA2463281C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/2015—Means for forcing the molten metal into the die
    • B22D17/2061—Means for forcing the molten metal into the die using screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • B29C45/50—Axially movable screw
    • B29C45/52—Non-return devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/88022—One valve head provides seat for other head

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Check Valves (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Lift Valve (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Food-Manufacturing Devices (AREA)

Abstract

The present invention relates to a non-return valve that can be configured for use anywhere along a molding material flow path in a molding system. The non-return valve of the present invention includes an improved means to restrict the backflow of melt therethrough during injection. In particular, a spigot-seal is configurable, during injection, between overlapping, closely-spaced, and mutually parallel complementary male and female spigot portions that are configured between complementary valve members. The spigot-seal advantageously maintains an effective backflow restriction even in the eventuality of transient movement between the spigot portions during injection. Preferably, the non-return valve of the present invention is also configured to include a means for mutually aligning and/or guiding the complementary valve components that ensures a proper alignment between the complementary spigot portions, and may also serve to improve the function and longevity of a face-seal, when present. The non-return valve of the present invention provides particularly advantageous utility when configured for use in a barrel assembly of an injection unit for the injection molding of a metal alloy.
CA 2463281 2004-04-05 2004-04-05 Non-return valve for use in a molding system Expired - Fee Related CA2463281C (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
CA 2463281 CA2463281C (en) 2004-04-05 2004-04-05 Non-return valve for use in a molding system
US11/062,020 US7364131B2 (en) 2004-04-05 2005-02-18 Non-return valve for use in a molding system
MXPA06010191A MXPA06010191A (en) 2004-04-05 2005-02-21 Non-return valve for use in a molding system.
AU2005230648A AU2005230648B2 (en) 2004-04-05 2005-02-21 Non-return valve for use in a molding system
DE200560021966 DE602005021966D1 (en) 2004-04-05 2005-02-21 CHECK VALVE FOR USE IN A FORMSYSTEM
RU2006138479A RU2338109C2 (en) 2004-04-05 2005-02-21 Molder check valve
CNB2005800104777A CN100526694C (en) 2004-04-05 2005-02-21 Non-return valve for use in a molding system
BRPI0509013-0A BRPI0509013A (en) 2004-04-05 2005-02-21 check valve for use in a molding system
EP20050714459 EP1747392B1 (en) 2004-04-05 2005-02-21 Non-return valve for use in a molding system
AT05714459T ATE472071T1 (en) 2004-04-05 2005-02-21 CHECK FLAP FOR USE IN A MOLDING SYSTEM
JP2007506622A JP4547001B2 (en) 2004-04-05 2005-02-21 Check valve used in molding system
PCT/CA2005/000212 WO2005098290A1 (en) 2004-04-05 2005-02-21 Non-return valve for use in a molding system
TW94106084A TWI277468B (en) 2004-04-05 2005-03-01 Non-return valve for use in a molding system
TW95143645A TWI308624B (en) 2004-04-05 2005-03-01 Non-return valve for use in a molding system
IL177659A IL177659A0 (en) 2004-04-05 2006-08-23 Non-return valve for use in a molding system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2463281 CA2463281C (en) 2004-04-05 2004-04-05 Non-return valve for use in a molding system

Publications (2)

Publication Number Publication Date
CA2463281A1 true CA2463281A1 (en) 2005-10-05
CA2463281C CA2463281C (en) 2007-11-13

Family

ID=35096562

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2463281 Expired - Fee Related CA2463281C (en) 2004-04-05 2004-04-05 Non-return valve for use in a molding system

Country Status (14)

Country Link
US (1) US7364131B2 (en)
EP (1) EP1747392B1 (en)
JP (1) JP4547001B2 (en)
CN (1) CN100526694C (en)
AT (1) ATE472071T1 (en)
AU (1) AU2005230648B2 (en)
BR (1) BRPI0509013A (en)
CA (1) CA2463281C (en)
DE (1) DE602005021966D1 (en)
IL (1) IL177659A0 (en)
MX (1) MXPA06010191A (en)
RU (1) RU2338109C2 (en)
TW (2) TWI308624B (en)
WO (1) WO2005098290A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7425126B2 (en) * 2006-05-17 2008-09-16 Husky Injection Molding Systems Ltd. Molding-system valve having knockdown retainer
US20080017345A1 (en) * 2006-07-20 2008-01-24 Husky Injection Molding Systems Ltd. Molding-system valve
FR2909288B1 (en) * 2006-12-01 2009-02-06 Jose Bensoussan NASAL TIP FOR NASAL SECRETION SUCTION DEVICE AND NASAL SECRET ASPIRATION DEVICE COMPRISING THE NASAL TIP
US7527493B1 (en) * 2007-11-01 2009-05-05 Md Plastics Incorporated Precise control non-return valve
WO2010118501A1 (en) * 2009-04-13 2010-10-21 Husky Injection Molding Systems Ltd. An improved check valve for a resin plasticizing screw
DE102009033681A1 (en) 2009-07-17 2011-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device for the production of plastic moldings and their use
US9506576B2 (en) * 2009-08-17 2016-11-29 Titan Flow Control, Inc. Check valve apparatuses and methods
DE102011017610B3 (en) * 2011-04-27 2012-06-21 Oskar Frech Gmbh + Co. Kg Casting piston and casting unit with shut-off valve
WO2012173946A1 (en) * 2011-06-15 2012-12-20 Husky Injection Molding Systems Ltd Shooting-pot assembly having resin-mixing assembly
PT2942127T (en) * 2014-03-21 2019-05-16 Italpresse Ind Spa Die-casting machine with injection assembly with a shut-off valve
CN104972631A (en) * 2015-06-01 2015-10-14 苏州乔布注塑工业有限公司 Novel check valve
CN109332638A (en) * 2018-12-07 2019-02-15 蚌埠隆华压铸机有限公司 A kind of die casting machine convenient for injection
CN112776246B (en) * 2019-11-11 2023-01-17 株式会社沙迪克 Injection device and gas dissolving method for injection device
CN114440047B (en) * 2021-11-04 2023-07-25 昆明学院 Hydraulic engineering drainage equipment

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3438393A (en) 1966-07-20 1969-04-15 Improved Machinery Inc Valve
JPS4716574Y1 (en) * 1969-01-30 1972-06-10
US4377180A (en) 1980-11-10 1983-03-22 Component Manufacturing & Design, Inc. Non-return valve for plastic injection molding
DE3240872C2 (en) 1982-11-05 1986-10-09 Erich 7141 Steinheim Blattert Non-return valve for a screw injection molding machine
JPS59179024U (en) * 1983-05-19 1984-11-30 株式会社　名機製作所 Ring valve mechanism in injection molding machine
JPS6158955U (en) * 1984-09-21 1986-04-21
US4643665A (en) 1985-09-05 1987-02-17 Mallard Machine Company Check valve assembly for injection molding machine
US4850851A (en) 1988-01-07 1989-07-25 Cincinnati Milacron, Inc. Anti-backflow valve for injection molding machines
US5040589A (en) 1989-02-10 1991-08-20 The Dow Chemical Company Method and apparatus for the injection molding of metal alloys
SU1689097A1 (en) 1989-11-29 1991-11-07 Производственное Объединение "Термопластавтомат" Им.Хху1 Съезда Кпсс Device for blocking off reversed flow of material in plastisizing unit of injection molding machine
US5044926A (en) 1990-06-25 1991-09-03 Cincinnati Milacron Inc. Anti-backflow valve for injection molding machines
US5258158A (en) 1991-05-13 1993-11-02 Dray Robert F Positive-type non-return valve and method of using valve
US5470514A (en) 1991-05-13 1995-11-28 Dray; Robert F. Injection molding method for a shot of determined mass
US5151282A (en) 1991-05-13 1992-09-29 Dray Robert F Positive-type non-return valve
US5401161A (en) 1991-06-14 1995-03-28 Long; Michael C. Injection molding valve
JP2571523B2 (en) 1993-09-28 1997-01-16 日精樹脂工業株式会社 Injection screw
US5441400A (en) 1994-04-07 1995-08-15 Zeiger; Donald J. Spring biased check valve for an injection molding machine
FR2718800B1 (en) 1994-04-13 1996-07-12 Alain Georges Rene Viron Self-centering floating pin valve with two support points on flats machined or forged at a given angle.
US5680894A (en) * 1996-10-23 1997-10-28 Lindberg Corporation Apparatus for the injection molding of a metal alloy: sub-ring concept
US5945141A (en) * 1997-04-28 1999-08-31 Nissei Plastic Industrial Co., Ltd. Screw head device for injection molding machine
JP3877190B2 (en) 1997-07-18 2007-02-07 住友重機械工業株式会社 Backflow prevention device
US6203311B1 (en) 1998-05-04 2001-03-20 Robert F. Dray Sliding ring non-return valve
DE19959495C1 (en) 1999-12-10 2001-05-23 Battenfeld Gmbh Backflow barrier, for molten plastics from extruder screw for injection molding, has outer section with passage drillings and base body with molten flow channel with low-wear movements between the open/closed settings
US6494703B2 (en) 2001-02-23 2002-12-17 Husky Injection Molding Systems, Ltd. Barrel assembly
JP3677738B2 (en) * 2001-03-09 2005-08-03 日精樹脂工業株式会社 Injection plunger with ring valve for metal material molding
DE10230041B4 (en) 2002-07-04 2006-04-20 Johann Holzschuh Return valve
US6681837B1 (en) 2002-12-19 2004-01-27 Chi Yin Wu Air releasing check structure of metal injecting machine

Also Published As

Publication number Publication date
AU2005230648A1 (en) 2005-10-20
EP1747392A4 (en) 2007-10-10
US20050233020A1 (en) 2005-10-20
ATE472071T1 (en) 2010-07-15
WO2005098290A1 (en) 2005-10-20
EP1747392B1 (en) 2010-06-23
RU2338109C2 (en) 2008-11-10
TW200722665A (en) 2007-06-16
TWI308624B (en) 2009-04-11
CN1938538A (en) 2007-03-28
BRPI0509013A (en) 2007-08-07
IL177659A0 (en) 2006-12-31
TWI277468B (en) 2007-04-01
AU2005230648B2 (en) 2008-04-24
CA2463281C (en) 2007-11-13
CN100526694C (en) 2009-08-12
MXPA06010191A (en) 2007-04-10
DE602005021966D1 (en) 2010-08-05
TW200533438A (en) 2005-10-16
JP4547001B2 (en) 2010-09-22
US7364131B2 (en) 2008-04-29
EP1747392A1 (en) 2007-01-31
JP2007531854A (en) 2007-11-08
RU2006138479A (en) 2008-05-10

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20150407